以萘酰亚胺为发色团合成了两种具有光谱重叠的荧光量子产率较高的荧光小分子,并以两种小分子掺杂制备了聚氯乙烯(PVC)荧光膜.由于发生小分子间的能量转移现象,PVC膜表现单激发双发射峰,并且两处发射峰强度之比与两种小分子的摩尔比值相关.薄膜材料对酸碱具有一定稳定性,在水溶液中对Fe3+具有荧光猝灭选择性,并在一定范围内荧光强度与Fe3+浓度呈现一定的线性关系,此PVC膜有望成为环境监测中Fe3+响应传感器.
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